Answer:
area = 400 in²
Step-by-step explanation:
parallelogram area = 20 x 16 = 320
triangle area = 1/2(20)(8) = 80
320 + 80 = 400 in²
Answer: k=11
Tn=T1+(n-1)*d
Tn is the nth term
T1 is the first term of the sequence
n is the nth term as well
d is the common difference